Industry Experts
Providing Addiction Care and Information You Can Trust

Corporate Leadership


Michael Cartwright
Chairman of the Board
Brentwood, Tennessee
Michael Cartwright Linkedin Profile
Andrew McWilliams
Chief Executive Officer
Brentwood, Tennessee
Andrew McWilliams Linkedin Profile
Dan Cerrillo
Chief of Staff
Brentwood, Tennessee
Dan Cerrillo Linkedin Profile
Dr. Lawrence Weinstein, MD, ABHM, FASAM, FAMA
Chief Medical Officer
St. Petersburg, Florida
Dr. Lawrence Weinstein, MD, ABHM, FASAM, FAMA Linkedin Profile
Dr. Mark Calarco
National Medical Director for Clinical Diagnostics, American Addiction Centers
Brentwood, Tennessee
Dr. Mark Calarco Linkedin Profile
Karen Abbott
Chief Compliance Officer
Brentwood, Tennessee
Karen Abbott Linkedin Profile
Stephen Ebbett
Chief Digital and Marketing Officer
San Diego, California
Stephen Ebbett Linkedin Profile

Facility Leadership


The public health experts on AAC's facility leadership team are on the cutting edge of addiction treatment standards and best practices.
Denise O’Connell
Chief Executive Officer, Recovery First
Hollywood, Florida
Derek Price
Chief Executive Officer, Desert Hope Treatment Center
Las Vegas, Nevada
Derek Price Linkedin Profile
Fred Trapassi
Chief Executive Officer, AdCare Rhode Island
North Kingstown, Rhode Island
Fred Trapassi Linkedin Profile
Jeff Turiczek
Chief Executive Officer, River Oaks Treatment Center
Riverview, Florida
Jeff Turiczek Linkedin Profile
Jeffrey Hillis
Chief Executive Officer, AdCare Hospital
Worcester, Massachusetts
Jim Zuravnsky
Interim Chief Executive Officer, Sunrise House Treatment Center
Lafayette, New Jersey
Mark Sawyer
Chief Executive Officer, Oxford Treatment Center
Etta, Mississippi
Marlon Rollins, PhD
Chief Executive Officer, Laguna Treatment Hospital
Aliso Viejo, California
Marlon Rollins, PhD Linkedin Profile
Tyler Harrell
Chief Executive Officer, Greenhouse Treatment Center
Grand Prairie, Texas
Tyler Harrell Linkedin Profile

Network of Treatment Professionals


Our medical directors and other clinical leadership set the standard of care for AAC facilities to ensure high quality treatment. Our laboratory/diagnostics leadership oversee Addiction Labs, conduct research, and develop products and services to improve patient outcomes.
Dr. Casey Green
Medical Director, Greenhouse Treatment Center
Grand Prairie, Texas
Dr. Evangelos Christodoulou
Medical Director, Sunrise House Treatment Center
Lafayette, New Jersey
Dr. Howard Taylor
Laboratory Director, Addiction Labs
Brentwood, Tennessee
Dr. Jerri Avery
Clinical Director, Oxford Treatment Center
Jackson, Mississippi
Dr. Jerri Avery Linkedin Profile
Dr. Michael Murphy, MD, MPH
Medical Director, River Oaks Treatment Center
Riverview, Florida
Dr. Michael Murphy, MD, MPH Linkedin Profile
Dr. Mohammad Alhabbal
Medical Director, AdCare Hospital
Worcester, Massachusetts
Dr. Paul Little
Medical Director, Laguna Treatment Hospital
Aliso Viejo, California
Dr. Richard Seely
Medical Director, Recovery First Treatment Center
Hollywood, Florida
Dr. Stephen Pannel
Medical Director, Oxford Treatment Center
Etta, Mississippi
Frances Myers-Routt, LCSW, ACSW
Clinical Director, River Oaks Treatment Center
Riverview, Florida
Kenneth Thomas, LPC, LCADC
Clinical Director, Sunrise House Treatment Center
Lafayette, New Jersey
Melitta Basa, MA, EMDR, LCDC, LPC
Clinical Director, Greenhouse Treatment Center
Grand Prairie, Texas
Melitta Basa, MA, EMDR, LCDC, LPC Linkedin Profile
Michael Coburn
Medical Director, AdCare
Rhode Island
Stefanie Magalong, LPCC
Clinical Director, Laguna Treatment Hospital
Aliso Viejo, California
Stefanie Magalong, LPCC Linkedin Profile
Yaritza Semenuk, LMHC, MS
Clinical Director, Recovery First Treatment Center
Hollywood, Florida
Yaritza Semenuk, LMHC, MS Linkedin Profile

Business Development Leadership


AAC’s business development team is our boots on the ground in your local community, helping connect people in crises and other situations with addiction rehab treatment when they need it most.
Melissa Tashjian
VP, Business Development
Glastonbury, CT
Melissa Tashjian Linkedin Profile

Veterans Affairs


At AAC, the veteran affairs team is responsible for outreach, advocacy, and oversight of a broad portfolio of resources aimed to support veterans and their families seeking help for their addiction and co-occurring mental health issues, and their families.
Edward “Eddy” Leddy
Military and Veteran Affairs
San Diego, California
Georganna “Georgie” Koppermann
Vice President, Military Affairs
Westerly, Rhode island
Georganna “Georgie” Koppermann Linkedin Profile

Brand & Communications


Joy Sutton
Director of Corporate Communications
Brentwood, TN
Joy Sutton Linkedin Profile
Maz Rodriguez
Sr. Public Relations Specialist
Brentwood, TN
Maz Rodriguez Linkedin Profile
Melanie Haber
SVP, Brand & Communications
New York, New York
Melanie Haber Linkedin Profile
Ruchi Dhami
Director, Brand & Design
New York, New York
Ruchi Dhami Linkedin Profile

Credentialed Medical Editors


AAC's editors review content, checking that the information presented is accurate and up-to-date, using credible sources for statistics and medical information.
Medically Reviewed Badge
Medically Reviewed Badge
Look for the medically reviewed badge on articles for information fact-checked by one of our credentialed medical or clinical editors.
Ryan Kelley, NREMT
San Diego, California
Ryan Kelley, NREMT Linkedin Profile
Scot Thomas, MD
San Diego, California
Scot Thomas, MD Linkedin Profile